WASHINGTON (AP) — Concluding three days of fervent, public disagreement, a Supreme Court seemingly split over ideology will now wrestle in private about whether to strike down key parts or even all of President Barack Obama’s historic health care law. The justices’ decision, due this June, will affect the way virtually every American receives and pays for care.

The court wrapped up public arguments Wednesday on the overhaul, which is designed to extend health insurance to most of the 50 million Americans now without it. The first and biggest issue the justices must decide is whether the centerpiece of the law, the requirement that nearly all Americans carry insurance or pay a penalty, is constitutional.

Wednesday’s argument time was unusual in that it assumed a negative answer to that central question. What should happen to other provisions, the justices and lawyers debated, if the court strikes down the…